Monthly weather forecast and climate
Ross, CA

Weather in January

January, like December, is another mild winter month in Ross, California, with average temperature ranging between max 56.1°F (13.4°C) and min 45.5°F (7.5°C). In Ross, the average high-temperature in January is practically the same as in December - a still moderate 56.1°F (13.4°C). Weather in January »

Weather in February

The last month of the winter, February, is another mild month in Ross, California, with average temperature ranging between max 57.9°F (14.4°C) and min 45.9°F (7.7°C). In February, the average high-temperature is practically the same as in January - a still mild 57.9°F (14.4°C). Weather in February »

Weather in March

March, the first month of the spring, in Ross, is also a moderate month, with average temperature varying between 46.9°F (8.3°C) and 59.4°F (15.2°C). In March, the average high-temperature is almost the same as in February - a still mild 59.4°F (15.2°C). Weather in March »

Weather in April

April is an enjoyable spring month in Ross, California, with average temperature varying between 62.8°F (17.1°C) and 48.6°F (9.2°C). In Ross, the average high-temperature is practically the same as in March - a comfortable 62.8°F (17.1°C). Weather in April »

Weather in May

The last month of the spring, May, is another comfortable month in Ross, California, with temperature in the range of an average low of 50.4°F (10.2°C) and an average high of 64.9°F (18.3°C). In Ross, the average high-temperature in May is essentially the same as in April - a still comfortable 64.9°F (18.3°C). Weather in May »

Weather in June

The first month of the summer, June, is an agreeable month in Ross, California, with average temperature fluctuating between 69.1°F (20.6°C) and 53.2°F (11.8°C). In Ross, the average high-temperature in June is essentially the same as in May - a pleasant 69.1°F (20.6°C). Weather in June »

Weather in July

July, the same as June, in Ross, California, is another pleasant summer month, with average temperature fluctuating between 54.3°F (12.4°C) and 70.5°F (21.4°C). In Ross, the average high-temperature is practically the same as in June - a still agreeable 70.5°F (21.4°C). Weather in July »

Weather in August

August, the last month of the summer, in Ross, is also an agreeable month, with average temperature fluctuating between 71.2°F (21.8°C) and 55.4°F (13°C). In August, the average high-temperature is practically the same as in July - a still agreeable 71.2°F (21.8°C). Weather in August »

Weather in September

September, the first month of the autumn, in Ross, is also an agreeable month, with temperature in the range of an average low of 56.1°F (13.4°C) and an average high of 72.3°F (22.4°C). The warmest month is September, with an average high-temperature of 72.3°F (22.4°C) and an average low-temperature of 56.1°F (13.4°C). Weather in September »

Weather in October

October, the same as September, in Ross, California, is an agreeable autumn month, with average temperature fluctuating between 54.3°F (12.4°C) and 68.9°F (20.5°C). In October, the average high-temperature is practically the same as in September - a still agreeable 68.9°F (20.5°C). Weather in October »

Weather in November

The last month of the autumn, November, is another comfortable month in Ross, California, with average temperature fluctuating between 61.5°F (16.4°C) and 49.6°F (9.8°C). In November, the average high-temperature slightly decreases, from an agreeable 68.9°F (20.5°C) in October, to a comfortable 61.5°F (16.4°C). Weather in November »

Weather in December

The first month of the winter, December, is also a moderate month in Ross, California, with temperature in the range of an average high of 55.4°F (13°C) and an average low of 45.3°F (7.4°C). The coldest month is December, with an average high-temperature of 55.4°F (13°C) and an average low-temperature of 45.3°F (7.4°C). Weather in December »
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FAQ

How much does it rain in Ross?

Throughout the year, in Ross, California, there are 48 rainfall days, and 3.94" (100mm) of precipitation is accumulated.

What is the month with the lowest UV index in Ross?

Months with the lowest UV index in Ross, California, are January, February, November and December, with an average maximum UV index of 3.

What is the wettest month in Ross?

The month with the most rainfall in Ross, California, is February when the rain falls for 5.3 days and typically aggregates up to 0.87" (22mm) of precipitation.

What is the most humid month in Ross?

The most humid month in Ross is March, with an average relative humidity of 77%.

When is the highest UV index in Ross?

Months with the highest UV index in Ross are April, June through September, with an average maximum UV index of 5.

What is the driest month in Ross?

June through September are months with the least rain when the rain falls for 1.2 days and typically aggregates up to 0.04" (1mm) of rain.

When are the longest days in Ross?

June has the longest days of the year in Ross, with an average of 14.8h of daylight.

What month has the most sunshine in Ross?

The month with the most sunshine is July, with an average of 11.2h of sunshine.

What is the warmest month in Ross?

September is the warmest month, with an average high-temperature of 72.3°F (22.4°C) and an average low-temperature of 56.1°F (13.4°C).

What is the least humid month in Ross?

With an average relative humidity of 68%, October is the least humid month in Ross, California.

What is the coldest month in Ross?

With an average high-temperature of 55.4°F (13°C) and an average low-temperature of 45.3°F (7.4°C), December is the coldest month in Ross, California.

What is the month with the shortest days in Ross?

With an average of 9.6h of daylight, December has the shortest days of the year.

What is the month with the least sunshine in Ross?

December has the least sunshine of the year, with an average of 5.5h of sunshine.

Average temperature
Ross, CA

Average temperature - Ross, CA

The warmest month (with the highest average high temperature) is September (72.3°F).
The month with the lowest average high temperature is December (55.4°F).

The month with the highest average low temperature is September (56.1°F).
The coldest month (with the lowest average low temperature) is December (45.3°F).

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Average pressure
Ross, CA

Average pressure - Ross, CA

The month with the highest atmospheric pressure is January (30.13").
Months with the lowest atmospheric pressure are June, August and September (29.92").

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Average wind speed
Ross, CA

Average wind speed - Ross, CA

The windiest month (with the highest average wind speed) is May (7.8mph).
The calmest months (with the lowest average wind speed) are October and November (5.5mph).

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Average rainfall
Ross, CA

Average rainfall - Ross, CA

The wettest month (with the highest rainfall) is February (0.87").
The driest months (with the least rainfall) are June, July, August and September (0.04").

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Average rainfall days
Ross, CA

Average rainfall days - Ross, CA

The month with the highest number of rainy days is March (8.8 days).
Months with the least rainy days are June and August (1.2 days).

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Average daylight / Average sunshine
Ross, CA

Average daylight / Average sunshine - Ross, CA

The month with the longest days is June (Average daylight: 14.8h).
The month with the shortest days is December (Average daylight: 9.6h).

The month with the most sunshine is July (Average sunshine: 11.2h).
The month with the least sunshine is December (Average sunshine: 5.5h).

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Average sunshine days
Ross, CA

Average sunshine days - Ross, CA

The month with the most sunshine days is June (26.4 days).
The month with the least sunshine days is March (20.7 days).

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Average UV index
Ross, CA

Average UV index - Ross, CA

Months with the highest UV index are April, June, July, August and September (UV index 5).
Months with the lowest UV index are January, February, November and December (UV index 3).

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Average visibility
Ross, CA

Average visibility - Ross, CA

Months with the highest visibility are January, February, March, April, May, June, July, August, September, October, November and December (6mi).
Months with the lowest visibility are January, February, March, April, May, June, July, August, September, October, November and December (6mi).

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